The PE12D1004 from Pasternack Enterprises Inc is a Waveguide Mixer with RF Frequency 33 to 50 GHz, LO Frequency 33 to 50 GHz, IF Frequency DC to 18 GHz, Conversion Loss 6.5 dB, LO Drive Level 13 to 15 dBm. Tags: Down Converter Mixer, Double Balanced Mixer. More details for PE12D1004 can be seen below.